// 字体大小
$fs: 16px

@function fs($step:0, $stepSize:2)
	@return $fs + $step * $stepSize

// 行高
$lh: 12px

@function lh($times:1)
	@return $times * $lh

@mixin inline
	display: inline-block
	vertical-align: top
	@content

@mixin nosel
	user-select: none
	-webkit-user-select: none
	-moz-user-select: none
	-ms-user-select: none
	@content

@mixin sel
	user-select: text !important
	-moz-user-select: text !important
	-webkit-user-select: text !important
	cursor: text !important
	@content
